Type-writing machine.



PATWTED HWY. 19, 190?.

J. PELBEL.

TYPE WRITING MAcamB.

APPLIUATIOH FILED I511. 15, 19Q5.

i! SHEETS-SHEET 1.

INVENTEIR 1 ATEN$ED'NOV. 19,1907;

J. FBL'BEL. I TYPE- WRITING MACHINE.

APPLIOATION FILED MAR. 15, 1905.

2 SHEETS-SHEET Z.

INVE TUR;

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NITED STATES PATENT OFFICE.

JACOB FELBEL, OF NEW YORK, N. Y., ASSIGNOR TO UNION TYPEWRITER COMPANY, OF

JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TYPE WRITING MACHINE Patented Nov. 19, 1907.

Application filed March 15. 1905. Serial No. 250.222.

-chines, :of which the follow ng is a specification.,

This invention relates to typewriting machinesand has for its-main object to provide atype rest. or cushion adapted to reduce the rebound of the type bars when they fall backto normal position.

hereinafter'appear, my invention consists in f To the above and other ends which will the parts, features of construction and combinations of devices to be hereinafter more fully'set forth and particularly pointed out machines.

in the claims.

My invention is shown as applied to a .machine having the general characteristics of the Monarch typewriting machine, but it may be embodied in other forms of writing In the accompan ing drawings, Figure 1 is a viewtaken in ongitudinal central sec- ,tion of so much of a typewriting machine as is necessary to illustrate the invention. Fig. 2 is a rear elevation of the type rest and the forward ends of some of the type bars taken on a plane represented by the line a:a: of Fig. 1, various parts-being omitted. Fig. 3 is a-view, similar to Fig. 2, of a modification of the invention, the type rests being shown in section. Fig. 4 is a sectional view taken on the line y-y of Fig. 3. Fig. 5 is a side viewof a modification.

Considering first Figs. 1 and 2, 1 is the 4 obase of the machine sustaining corner posts 2 which su port the top plate 3, upon which is mounte a carriage (not shown) carrying a platen 4, diagrammatically illustrated. Key levers 5 are pivoted at 6 in the rear of the base and each of said key levers is proxvided with a key cap 7 and a restoring spring 8. Pivoted at 9 to each key lever is a sub-lever 10, thelower portion of'which is formed with a slot 11 embracing a fulcrum 0" rod 12 which passes from side to side of the machine beneath the series of key levers, and is secured in the side walls of the base 1.

The upper end of each sub-lever is pivotally connected at 13 to the rear end of a link 14,

.the forward end whereof is fpivotedat 15 to a the type bars 16.

type bar 16. Each type bar is arranged in one of a series of radial slots 17 formed in a type bar segment 18 and is mounted upon a pivot rod 1t which is seated in a groove in the top of the segmental support 18; but the type bars may be otherwise pivotally mounted. Each type bar is provided with a restoring spring 20 and its free end, which carries a type block 21, bears normally against a pad or thin facing 22 of some soft material, such as felt or leather. The facing or pad 22 is suitably secured to the forward arm 23 of a lever 24, the rear arm 25 whereof terminates in a counterweight 26. The series'of levers 24 is-pivotally mounted on a segmental bearing rod 27, which is seated in a groove formed in the top of the inner flange 28 of a segmental support 29, said bearing rod being held in place by a headed screw 27 at each end. The flange 28 is provided with a series of radial slots 30 in each of which one of the'levers 24 is arranged. The support 29 is formed at its ends with cars 29 in which are secured horizontally disposed arms 31, these latter projecting forwardly from the type bar segment 18 to which they are fixed.

Each lever 24 with its associate pad 22 and counterweight 26 comprises an individual pivoted type rest or cushion for one of As best appears in Fig. 1, the forward portion of each type rest is held normally depressed by its associated type bar, with the arm 23 contacting with the inner face of the support 29. When the key lever 5 is depressed, the type bar is swung about its pivot and toward the platen in a well-known manner. During the initial art of this movement the facin 22 will folow the type bar towards the printing point, the lever arm 23 to which saldfacin is attached being swung .upwardly an rearwardly, and the lever arm 25 being swungdownwardly and forwardly about the pivot rod 27 by the action of gravity upon the 100 counterweight 26. This turning movement of the lever 24 about its pivot 27 continues until the under ed e of the arm 25 contacts with the bottom of the slot 30. When this occurs the type rest will be in the position 105 shown by the dotted lines of Fig. 1. As the type bar nears the end of its return movement it will contact with the raised facing 22 and will depress the latter until it reaches its normal position and will swing the lever 110 24 back to the position shown iniull lines in Fig. -1, raising the counterweight 26 against I the force ot. gravity. The type bar strikes the lever. 24,a;sharp blow and the motion of said type bar is communicated to the weighted lever; which, by its inertia, absorbsthe momentum of said type bar and prevents or diminishes "the rebound of said type bar.

I do.not "-of course, desire toibelimited to.

the precise constraction and 'arra n ement hitherto described ,fla nd various 0 anges may be made in these' 'and otherrespects within the scope ,ofmy invention. A11. ex-

ample of some of such changes isshown'in Figs. 3 and 4 ofsthe' drawings. :Irlthe modi:-'

iication illustrated in theselast named views,

The lever members 36 are of similar conrest for oneof the-type bars it. l

of individual type rests are pivotaiiy mounted struction to the lever members 24. Each lever member 36 is,' provided with a facing 37 and a counterweight 38., the three elements, as in the previously described construction, comprising an individual type The series 'on the bearing rod 34, and are held'properl-y spaced. apartiby'washers '39, said washers being threadedlnpon the bearing rod alternately 'With the individual type rests. The act-ion of this. modified construction of type nation of a type rest comprising a pivoted rest is similar to that of the first described construction. An equivalent construction is shown .at Fig. 5 where a spring 26 is employed to act on the type rest levers in the same manner as the counterweight; and in this view the pad is on thety'pe bar instead of on the type rest. lever.

Yariou'sother changes may, of course, be

. made without departing from the gist of my invention.

It will be noted that I have provided a type rest which constantly tendstowards the printing point but which is normally pressed in an opposite direction'by the type ar itself that the type bar normally holds the type rest at the limit of its movement in a direction away from the printing point; that as the type bar is swung towards the printing point, the type. rest also swings about its pivot and its pad end, follows'the' type bar in the radial plane of the latter until said type. rest reaches the limit of its movement in a direction towards the printing point that the means employed to cause "t h1s movement of the pad end of the type rest towards the printing point is the counfif) teiwveig'ght; the counterweight or means limit themovement of the stops in'the other" for raising the type rest is located between.- the free end of the type 'barand the pivi t.

of the typ bar; that the innerface' of thesupporting segment. 29 serves as a stop to;- limit the movement of the type rest in onedirection, and that the bottomof the slot 30 serves as a stop to limit the-movement of the' typerest in the otherdirection; 'thatuthe type rest moves from normal position in a direction towards the printing point vvithfi the type bar, so that, as the latter returns,,'-

-it'-cont aets with and moves 'said rest, which thus gradually absorbs the energy of the bar, until, when the latter arrives at normal osi-- tion, so-much. of this energy has been issi-- pated that the tendency'oi' the bar to re'-.

bound has been eatly lessened and an easy and effective cus 'oning efl'ect is obtained.

WVhat I claim as new and'desireto secure-- by Letters Patent, is:.- I a 1. In a typewriting machine, thecomb'knation with' a type banand actuating mechanism therefor; of a a type rest normally. pressed away from the printing point .by said type bar, said type rest comprising. a twoarm lever, one 'arm' whereof is conf tact'ive with the-type .bar, and means con nected with theother arm of saidlev'er and t'endin to counteract the type bar, said means eing independent of the type bar actuating mechanism.

z 2. In. a ty' ewrlting machine, the conibi--- nation of a movable pivoted type rest, stops limiting the movement of said restin either direction of its travel, andmeans'for. swing 10o ing saidjtype rest from one limiting stop to the other. v 3. In a typewriting. machine the combilever having a pad on one arm thereof and a 1'05 counterweight on the other arm thereof, stops adapted to contact with the arms of said type rest, and means forcausing movement of saidtype rest between said stops.

4. Ina ,typewriting machine,v the combi- 11'0 nation of a type rest support, movable individual type rests pivotally mounted on said support, stops limiting the rotary movement of said; type rests, and means for swinging said type rests from one stop to the other. 1- 5.. In a type-writing machine, the combination ofa slotted type rest support, individual type rests pivoted in the slots of said support, limiting stops on said support, and means'for causing movement of said'rests between said stops.

6. In a typewriting machine, the combination of a slotted type rest support, and individual type restspivoted in the slots of said support, one face of said support serving .as'a stop to limit the movement of said type rests in one direction, and the bottomcf the slots in said support serving as a stop to direction a the combination of a slotted segmental type.

rest sup'port, levers pivoted in the slots in said support, pads earned on the forward arms of said levers, counterweights carried onthe rear arms of said levers,, and a series of pivoted type bars the forward ends where- .of normally contact with said pads and serve to keep said pivoted levers in contact with the inner face of said type rest support.

9. Ina typewriting machine, the combinationof a type bar, actuating mechanism therefor, a type rest-pivoted to swing in the plane of the ty e. bar, and means independent of the type ar actuating mechanism for causing the type rest to swing in the direction of the printing point when the type bar is actuated to print, the said type rest inter cepting the type bar on its return movement and swinging therewith to normal position whereit is held by the type .bar until the latter is again actuated.

10. In a typewriting machine, the combination of a type bar, a curved support, and a type ba; rest. pivotally mounted on said support, the latter serving also as stops for the type rest in normal position and in abnormal position of the type rest.

11. In a typewriting machine, the combination of a series of pivoted type bars, actuating mecharism therefor, a curved support for the free ends of the typebars, and aseries of pivotaily mounted type rests provided each with'means independent ofthe actuating mechanism of the type bars for causing the type rest-to swing towards the printing point when its associated type bar is .actuated and each adapted to intercept the type bar :on its-return movement and be carried thereby to its normal position.

12.;In atypewriting machine, the combination of a series of pivoted type bars, a curved support for the free ends thereof, a series of'type rests pivotally mounted betweentheir ends on said support, the type bars bearing normally on one side of the pivots ofthe type rests and holding the latter down against their support, and means f arranged 011 the opposite side of the pivots -1position to intercept the type bars on their of the ty e rests for swinging the latter when the type ars are actuated to print; whereby the'oontact portions of the type rests are proved towards the printing point when the type bars are lifted and are brought to a return movement and travel therewith back to normal position, the ty e bar during this movement being compel ed to move the intercepting type rest against theforce tending to raise the type rest when the type bar is lifted. to print. 13. In a typewriting machine, the combination of a series of pivoted tvpe bars, a series of pivoted type rests therefor arranged to swing in the radial planes of the type bars, each type rest comprising a contact portion for its associated type bar, and means for raising the type rest when the type bar 1s raised, the raising means being located between the free end ofthe type bar and the pivot of the type b'ar.

nation of a series of pivoted typebars, a

series of levers pivoted 011 a curved support, each lever being provided with a type bar contact cushion and also with a means independent of the type bar actuating mechanism for raising the lever when the type bar is raised. a y

15. Ina typewriting machine, the combination of a series of pivoted type bars, and a series of levers pivoted on a curved support; each lever being provided witha type bar contact cushion on one side of its pivot and with a counterweight on the opposite side of its pivot.

16. In a typewriting machine, the combi'- nation of a type bar, a type rest comprising two arms and. a sto for each arm..

17. In a typewrlting machine, the combination of a type rest, means constantly tending to press said type rest towards the printing pomt, and a type bar normally press ng said type rest away from the printing pomt, said type rest comprising a pivoted member having said means at one side of the pivot, the type bar engaging said member at the other slde of the piv t.

18. In a typewriting machine, the combi'-' 20. In a typewriting machine, the c0mbi nation of type bars, means for actuating said type bars, and weighted levers arranged to be struck by said type bars as said type bars return to normal position and by their inertia to absorb the momentum of said ty e bars to prevent or diminish rebound of sa1d type bars; the said weights lying back of the type bars in the normal positions of the latter and,

nation of type bars, means for actuating said type bars, and weighted devices arranged to be struck by said type bays v a e- .Eg-aid type bars return to normal positien dby their inertia to absorb the momentum (if said type bars to prevent or diminish rebound of said type bars; the said'weights-lying back of the igned at the borough of' Manhattan, city of New York, in the countyof NewYork,

and State of New York, this l ith day of" March A. D. 1905.

Witnesses:

E; M. WELps, Y M. HANSEWEBER.

JACOB FELBE 

